oj.uz

Submission #914848

# Submission time Handle Problem Language Result Execution time Memory
914848 2024-01-22T18:20:49 Z mike Secret (JOI14_secret) C++14
100 / 100
 390 ms 9040 KB 
#include <vector>
#include <iostream>
 
#include "secret.h"
 
using namespace std;
 
 
int tree[4005][1005];
int arr[1005];
 
int tam;
 
void segment_tree(int pos, int ini, int fin){
    if(ini == fin){
        tree[pos][ini]=arr[ini];
        return;
    }
    if(ini == fin-1){
        tree[pos][ini]=arr[ini];
        tree[pos][fin]=arr[fin];
        return;
    }
    int mitad=(ini+fin)/2;
    tree[pos][mitad-1]=arr[mitad-1];
    for(int c=mitad-2; c >= ini; c--){
        tree[pos][c]=Secret(arr[c], tree[pos][c+1]);
    }
    tree[pos][mitad]=arr[mitad];
    for(int c=mitad+1; c <= fin; c++){
        tree[pos][c]=Secret(tree[pos][c-1],arr[c]);
    }
    segment_tree(pos*2, ini, mitad);
    segment_tree(pos*2+1, mitad+1, fin);    
}
 
void Init(int N, int A[]){
    tam=N;
    for(int c=0; c < N; c++){
        arr[c]=A[c];
    }
    segment_tree(1, 0, N-1);
}
 
int ayuda(int pos, int ini, int fin, int l, int r){
    int mitad=(ini+fin)/2;
    if(l == r)
        return arr[l];
    if(l == r-1)
        return Secret(arr[l], arr[r]);
    if(l < mitad && r >= mitad){
        return Secret(tree[pos][l], tree[pos][r]);
    }
  	if(l==mitad)return tree[pos][r];
  if(r == mitad-1) return tree[pos][l];
    if(l >= mitad){
        return ayuda(pos*2+1, mitad+1, fin, l, r);
    }
    else
        return ayuda(pos*2, ini, mitad, l , r);
}
 
int Query(int L, int R){
    if(L == R)
        return arr[L];
    if(L == R-1)
        return Secret(arr[L], arr[R]);
    return ayuda(1, 0, tam-1, L, R);
}

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 111 ms 6740 KB Output is correct - number of calls to Secret by Init = 3578, maximum number of calls to Secret by Query = 1
2 Correct 109 ms 6752 KB Output is correct - number of calls to Secret by Init = 3586, maximum number of calls to Secret by Query = 1
3 Correct 109 ms 6652 KB Output is correct - number of calls to Secret by Init = 3595, maximum number of calls to Secret by Query = 1
4 Correct 382 ms 9040 KB Output is correct - number of calls to Secret by Init = 7969, maximum number of calls to Secret by Query = 1
5 Correct 384 ms 8788 KB Output is correct - number of calls to Secret by Init = 7978, maximum number of calls to Secret by Query = 1
6 Correct 380 ms 8792 KB Output is correct - number of calls to Secret by Init = 7978, maximum number of calls to Secret by Query = 1
7 Correct 380 ms 8792 KB Output is correct - number of calls to Secret by Init = 7978, maximum number of calls to Secret by Query = 1
8 Correct 390 ms 8876 KB Output is correct - number of calls to Secret by Init = 7978, maximum number of calls to Secret by Query = 1
9 Correct 381 ms 8792 KB Output is correct - number of calls to Secret by Init = 7978, maximum number of calls to Secret by Query = 1
10 Correct 382 ms 8792 KB Output is correct - number of calls to Secret by Init = 7978, maximum number of calls to Secret by Query = 1